com.vaadin.ui.JavaScript类的使用及代码示例

x33g5p2x  于2022-01-22 转载在 JavaScript  
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本文整理了Java中com.vaadin.ui.JavaScript类的一些代码示例，展示了JavaScript类的具体用法。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类的具体详情如下：
包路径：com.vaadin.ui.JavaScript
类名称：JavaScript

JavaScript介绍

[英]Provides access to JavaScript functionality in the web browser. To get an instance of JavaScript, either use Page.getJavaScript() or JavaScript.getCurrent() as a shorthand for getting the JavaScript object corresponding to the current Page.
[中]提供对web浏览器中JavaScript功能的访问。要获取JavaScript实例，请使用Page。getJavaScript（）或JavaScript。getCurrent（）作为获取与当前页面对应的JavaScript对象的缩写。

代码示例

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

  1. /**
  2.  * Executes JavaScript in this window.
  3.  *
  4.  * <p>
  5.  * This method allows one to inject javascript from the server to client. A
  6.  * client implementation is not required to implement this functionality,
  7.  * but currently all web-based clients do implement this.
  8.  * </p>
  9.  *
  10.  * <p>
  11.  * Executing javascript this way often leads to cross-browser compatibility
  12.  * issues and regressions that are hard to resolve. Use of this method
  13.  * should be avoided and instead it is recommended to create new widgets
  14.  * with GWT. For more info on creating own, reusable client-side widgets in
  15.  * Java, read the corresponding chapter in Book of Vaadin.
  16.  * </p>
  17.  *
  18.  * @param script
  19.  *            JavaScript snippet that will be executed.
  20.  *
  21.  * @deprecated As of 7.0, use JavaScript.getCurrent().execute(String)
  22.  *             instead
  23.  */
  24. @Deprecated
  25. public void executeJavaScript(String script) {
  26.   getPage().getJavaScript().execute(script);
  27. }

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

  1. /**
  2.  * Executes the given JavaScript code in the browser.
  3.  *
  4.  * @param script
  5.  *            The JavaScript code to run.
  6.  */
  7. public static void eval(String script) {
  8.   getCurrent().execute(script);
  9. }

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

  1. public JavaScript getJavaScript() {
  2.   if (javaScript == null) {
  3.     // Create and attach on first use
  4.     javaScript = new JavaScript();
  5.     javaScript.extend(uI);
  6.   }
  7.   return javaScript;
  8. }

代码示例来源：origin: viritin/viritin

  1. public static void detectCookieValue(String key, final Callback callback) {
  2.   final String callbackid = "viritincookiecb"+UUID.randomUUID().toString().substring(0,8);
  3.   JavaScript.getCurrent().addFunction(callbackid, new JavaScriptFunction() {
  4.     private static final long serialVersionUID = -3426072590182105863L;
  5.     @Override
  6.     public void call(JsonArray arguments) {
  7.       JavaScript.getCurrent().removeFunction(callbackid);
  8.       if(arguments.length() == 0) {
  9.         callback.onValueDetected(null);
  10.       } else {
  11.         callback.onValueDetected(arguments.getString(0));
  12.       }
  13.     }
  14.   });
  15.   JavaScript.getCurrent().execute(String.format(
  16.       "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();",
  17.       callbackid,key
  18.   ));
  19. }

代码示例来源：origin: org.opencms/opencms-core

  1. public void run() {
  2.     JavaScript.eval(
  3.       "if (window.parent && window.parent."
  4.         + CmsLegacyApp.VAR_IS_LEGACY_APP
  5.         + ") window.parent.location.reload();");
  6.   }
  7. });

代码示例来源：origin: viritin/viritin

  1. @Override
  2.   public void call(JsonArray arguments) {
  3.     JavaScript.getCurrent().removeFunction(callbackid);
  4.     if(arguments.length() == 0) {
  5.       callback.onValueDetected(null);
  6.     } else {
  7.       callback.onValueDetected(arguments.getString(0));
  8.     }
  9.   }
  10. });

代码示例来源：origin: stackoverflow.com

  1. public JavaScriptResult Example()
  2. {
  3.   return new JavaScript("var response = 10");
  4. }

代码示例来源：origin: jreznot/electron-java-app

  1. private void initElectronApi() {
  2.   JavaScript js = getPage().getJavaScript();
  3.   js.addFunction("appMenuItemTriggered", arguments -> {
  4.     if (arguments.length() == 1 && arguments.get(0) instanceof JsonString) {
  5.       String menuId = arguments.get(0).asString();
  6.       if ("About".equals(menuId)) {
  7.         onMenuAbout();
  8.       } else if ("Exit".equals(menuId)) {
  9.         onWindowExit();
  10.       }
  11.     }
  12.   });
  13.   js.addFunction("appWindowExit", arguments -> onWindowExit());
  14.   Page.Styles styles = getPage().getStyles();
  15.   try {
  16.     InputStream resource = MainUI.class.getResourceAsStream(
  17.         "/org/strangeway/electronvaadin/resources/electron.css");
  18.     styles.add(IOUtils.toString(resource, StandardCharsets.UTF_8));
  19.   } catch (IOException ignored) {
  20.   }
  21. }

代码示例来源：origin: org.opencms/opencms-core

  1. public void attach(AttachEvent event) {
  2.     JavaScript.eval(VAR_IS_LEGACY_APP + " = true;");
  3.   }
  4. });

代码示例来源：origin: OpenNMS/opennms

  1. @Override
  2. public void execute(final List<VertexRef> targets, final OperationContext operationContext) {
  3.   final Collection<VertexRef> availableNodes = m_geoAssetProvider.getNodesWithCoordinates();
  4.   final StringBuilder sb = new StringBuilder();
  5.   sb.append(VaadinServlet.getCurrent().getServletContext().getContextPath());
  6.   sb.append("/node-maps#search/nodeId%20in%20");
  7.   final List<String> nodeIds = new ArrayList<>();
  8.   for (final VertexRef ref : targets) {
  9.     if (availableNodes.contains(ref)) {
  10.       nodeIds.add(ref.getId());
  11.     }
  12.   }
  13.   final Iterator<String> i = nodeIds.iterator();
  14.   while (i.hasNext()) {
  15.     sb.append(i.next());
  16.     if (i.hasNext()) {
  17.       sb.append(",");
  18.     }
  19.   }
  20.   final String redirectUrl = sb.toString();
  21.   LOG.info("redirecting to: " + redirectUrl);
  22.   final UI ui = operationContext.getMainWindow();
  23.   ui.getPage().getJavaScript().execute("window.location = '" + redirectUrl + "';");
  24. }

代码示例来源：origin: viritin/viritin

  1. public static void setCookie(String key, String value, String path) {
  2.   JavaScript.getCurrent().execute(String.format(
  3.       "document.cookie = \"%s=%s; path=%s\";", key, value, path
  4.   ));
  5. }

代码示例来源：origin: org.opencms/opencms-core

  1. public void detach(DetachEvent event) {
  2.     JavaScript.eval(VAR_IS_LEGACY_APP + " = false;");
  3.   }
  4. });

代码示例来源：origin: org.opennms.features/vaadin-node-maps

  1. @Override
  2. public void execute(final List<VertexRef> targets, final OperationContext operationContext) {
  3.   final Collection<VertexRef> availableNodes = m_geoAssetProvider.getNodesWithCoordinates();
  4.   final StringBuilder sb = new StringBuilder();
  5.   sb.append(VaadinServlet.getCurrent().getServletContext().getContextPath());
  6.   sb.append("/node-maps#search/nodeId%20in%20");
  7.   final List<String> nodeIds = new ArrayList<>();
  8.   for (final VertexRef ref : targets) {
  9.     if (availableNodes.contains(ref)) {
  10.       nodeIds.add(ref.getId());
  11.     }
  12.   }
  13.   final Iterator<String> i = nodeIds.iterator();
  14.   while (i.hasNext()) {
  15.     sb.append(i.next());
  16.     if (i.hasNext()) {
  17.       sb.append(",");
  18.     }
  19.   }
  20.   final String redirectUrl = sb.toString();
  21.   LOG.info("redirecting to: " + redirectUrl);
  22.   final UI ui = operationContext.getMainWindow();
  23.   ui.getPage().getJavaScript().execute("window.location = '" + redirectUrl + "';");
  24. }

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

  1. public void buttonClick(Button.ClickEvent event) {
  2.     // Stop the server in a separate thread.
  3.     final Thread thread = new Thread(new Runnable() {
  4.       public void run() {
  5.         server.stop();
  6.       }
  7.     });
  8.     // avoid that catalina's WebappClassLoader.clearReferencesThreads warns about the thread because it is
  9.     // part of the web application being stopped.
  10.     thread.setContextClassLoader(null);
  11.     thread.start();
  12.     // Close the browser tab
  13.     JavaScript.getCurrent().execute("close();");
  14.   }
  15. });

代码示例来源：origin: com.github.markash/statistics-card

  1. /**
  2.    * <p>
  3.    * Executes the given JavaScript code to manipulate the chart.
  4.    * Use the JavaScript variable <code>chart</code> to access the chart.
  5.    * </p>
  6.    * <p>Example:</p>
  7.    * <pre>  chart.manipulateChart("chart.addSeries({name: 'new', data: [1, 2]});");</pre>
  8.    *
  9.    * @param js JavaScript code to be executed
  10.    */
  11.   public void manipulateChart(String js) {
  12.     JavaScript.eval(
  13.         "var chart = $('#" + getDomId() + "').highcharts();\n" +
  14.             js
  15.     );
  16.   }
  17. }

代码示例来源：origin: com.haulmont.cuba/cuba-web

  1. @Override
  2. public void doRevert() {
  3.   super.doRevert();
  4.   JavaScript js = Page.getCurrent().getJavaScript();
  5.   js.execute("window.close();");
  6. }

代码示例来源：origin: viritin/viritin

  1. public static void setCookie(String key, String value, String path, LocalDateTime expirationTime) {
  2.   String expires = toCookieGMTDate(expirationTime);
  3.   JavaScript.getCurrent().execute(String.format(
  4.       "document.cookie = \"%s=%s; path=%s\"; Expires=%s\";", key, value, path, expires
  5.   ));
  6. }

代码示例来源：origin: org.opencms/opencms-core

  1. /**
  2.    * Sets the window title.<p>
  3.    *
  4.    * @param title the new window title
  5.    */
  6.   public void setTitle(String title) {
  8.     /* HACK: Using a Label destroys the layout for some reason, so we resort to setting the caption directly in the
  9.      element via an explicit JavaScript call. */
  10.     JavaScript.eval(
  11.       "document.querySelector('#"
  12.         + getId()
  13.         + " .fakewindowheader').innerHTML = '"
  14.         + StringEscapeUtils.escapeJavaScript(title)
  15.         + "'");
  16.   }
  17. }

代码示例来源：origin: org.eclipse.hawkbit/hawkbit-ui

  1. private static void getDynamicStyles(final String colorPickedPreview) {
  2.   Page.getCurrent().getJavaScript()
  3.       .execute(HawkbitCommonUtil.changeToNewSelectedPreviewColor(colorPickedPreview));
  4. }

代码示例来源：origin: viritin/viritin

  1. public static void setCookie(String key, String value, LocalDateTime expirationTime) {
  2.   String expires = toCookieGMTDate(expirationTime);
  3.   JavaScript.getCurrent().execute(String.format(
  4.     "document.cookie = \"%s=%s; expires=%s\";", key, value, expires
  5.   ));
  6. }

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