Menu.showContextMenu () throws exceptions when excluding ISC_Grids.js

[shortpasta]

Using:
SmartGWT LGPL 5.0-2015-01-11
GWT 2.5
FF 19

I am trying to "shrink" down the SmartGWT distribution.
For starters, I don't need grids, so I did this:

Short version:
I remove the include for ISC_Grids.js from my app HTML file, and I get this failure when calling Menu.showContextMenu ():
$wnd.isc[scClassName] is undefined

Long version:
1. Specify no script in my gwt.xml:

<inherits name="com.smartgwt.SmartGwtNoScript"/>

2. Include JS files individually:

<script src="portal/sc/modules/ISC_Core.js"></script>
<script src="portal/sc/modules/ISC_Foundation.js"></script>
<script src="portal/sc/modules/ISC_Containers.js"></script>
<script src="portal/sc/modules/ISC_Forms.js"></script>
<script src="portal/sc/modules/ISC_Grids.js"></script>
<script src="portal/sc/modules/ISC_DataBinding.js"></script>
<script src="portal/sc/skins/Graphite/load_skin.js?isc_version=9.0.js"></script>

3. Run the app to make sure it runs fine

4. Remove the include for ISC_Grids.js to save bandwidth, and then I get this when I right-click on an HLayout:

<Portal$1> <>com.google.gwt.event.shared.UmbrellaException: Exception caught: (TypeError) @com.smartgwt.client.widgets.menu.Menu::showContextMenu()([]): $wnd.isc[scClassName] is undefined
 at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:129)
 at com.smartgwt.client.widgets.BaseWidget.fireEvent(BaseWidget.java:72)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:606)
 at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
 at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
 at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
 at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:338)
 at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:219)
 at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
 at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571)
 at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279)
 at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
 at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
 at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:242)
 at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:606)
 at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
 at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
 at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
 at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:293)
 at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:547)
 at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364)
 at java.lang.Thread.run(Thread.java:745) Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError) @com.smartgwt.client.widgets.menu.Menu::showContextMenu()([]): $wnd.isc[scClassName] is undefined
 at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:249)
 at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
 at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571)
 at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279)
 at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
 at com.smartgwt.client.widgets.menu.Menu.showContextMenu(Menu.java)
 at org.fileprotocol.portal.client.layout.FileLayout$2.onShowContextMenu(FileLayout.java:118)
 at com.smartgwt.client.widgets.events.ShowContextMenuEvent.dispatch(ShowContextMenuEvent.java:104)
 at com.smartgwt.client.widgets.events.ShowContextMenuEvent.dispatch(ShowContextMenuEvent.java:1)
 at com.google.gwt.event.shared.GwtEvent.dispatch(GwtEvent.java:1)

My code to show a context menu:

private Menu contextMenu;

    // customize the context menu
    super.addShowContextMenuHandler (new ShowContextMenuHandler () {
      public void onShowContextMenu (final ShowContextMenuEvent event) {

        // clear previous context menu
        if (contextMenu != null) {
          logger.error ("destroying previous menu");
          contextMenu.destroy ();
          contextMenu = null;
        }

        // delegate
        contextMenu = new Menu ();
        final MenuItem menuItem = new MenuItem ("HEY");
        contextMenu.addItem (menuItem);

        logger.error ("showing context menu");
        contextMenu.showContextMenu ();

        // do not show the browser context menu
        event.cancel ();
      }
    });

This works fine when including the following in my HTML file:
<script src="portal/sc/modules/ISC_Grids.js"></script>

When I remove the line, my context menu fails.

Any advice?

[Blama]

Hi shortpasta,

see the menu docs.

Menu is a subclass of ListGrid.
So using a menu without ISC_Grids.js will most likely not be possible.

Best regards,
Blama

[shortpasta]

HAHA!
It didn't even occur to me to check that.
Solved, thank you!

Follow-up question then -- can anybody recommend a replacement menu that doesn't require the 891 KB needed by ISC_Grids.js?