Package com.google.gwt.core.client

Class ScriptInjector

  • public class ScriptInjector
extends java.lang.Object
    Dynamically create a script tag and attach it to the DOM. Usage with script as local string: 

       String scriptBody = "var foo = ...";
   ScriptInjector.fromString(scriptBody).inject();

    Usage with script loaded as URL: 

       ScriptInjector.fromUrl("http://example.com/foo.js").setCallback(
     new Callback() {
        public void onFailure(Exception reason) {
          Window.alert("Script load failed.");
        }
        public void onSuccess(Void result) {
          Window.alert("Script load success.");
        }
     }).inject();

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  ScriptInjector.FromString
      Builder for directly injecting a script body into the DOM.
      static class  ScriptInjector.FromUrl
      Build an injection call for adding a script by URL.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static ScriptInjector.FromString fromString​(java.lang.String scriptBody)
      Build an injection call for directly setting the script text in the DOM.
      static ScriptInjector.FromUrl fromUrl​(java.lang.String scriptUrl)
      Build an injection call for adding a script by URL.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • TOP_WINDOW

        public static final JavaScriptObject TOP_WINDOW
        Returns the top level window object. Use this to inject a script so that global variable references are available under $wnd in JSNI access.

        Note that if your GWT app is loaded from a different domain than the top window, you may not be able to add a script element to the top window.

    • Method Detail

      • fromString

        public static ScriptInjector.FromString fromString​(java.lang.String scriptBody)
        Build an injection call for directly setting the script text in the DOM.
        Parameters:
        scriptBody - the script text to be injected and immediately executed.

      • fromUrl

        public static ScriptInjector.FromUrl fromUrl​(java.lang.String scriptUrl)
        Build an injection call for adding a script by URL.
        Parameters:
        scriptUrl - URL of the JavaScript to be injected.