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我正在尝试在 GWTP 中嵌套一个选项卡演示器。我有一帧（北）是选项卡组 1 和一帧（西）是选项卡组 2。当我与组 1 交互时，我更新了控制组 2 的嵌套选项卡演示器。我查看了嵌套选项卡的示例演示者，但我无法从中确定我的错误。

两个 TabContainerPresenter 是 ManagmentTabsPresenter 和 SettingsTabsPresenter。这些的孩子就像下面的 HomePresenter。这些子项的内容显示在 DockLayoutPanel 的中心。我希望 ManagementTabsPresenter 和 SettingsTabsPresenter 显示在同一个 DockLayoutPanel 的 West 插槽中。

我看到的问题是，当运行此代码时，ManagementTabsPresenter 的revealInParent() 方法和SettingsTabsPresenter 的revealInParent() 方法都会在我尝试在子选项卡上查看一个时被调用。（即 homePresenter）。为什么要调用这两个revealInParent 方法？我错过了什么？确实，SettingsTabsPresenter 和 ManagementTabsPresenter 都位于显示的父选项卡中。这是否意味着当父 tabcontainerpreseter 是 revelatedinparent 时，这两个 tabcontainerpresetners(nonleavetabcontentproxy) 的revealInParent 将被调用？

public class HomePresenter extends Presenter<HomePresenter.MyView, HomePresenter.MyProxy> {
@Inject
AppPlaceManager appPlaceManager;

@NameToken(NameTokens.homePage)
@ProxyStandard
@NoGatekeeper
public interface MyProxy extends TabContentProxyPlace<HomePresenter> {
}

public interface MyView extends View {
}

@TabInfo(container = ManagementTabsPresenter.class)
static TabData getTabLabel(MainAppGinjector injector) {
    return new TabDataBasic(injector.getVSMMessages().home_tab(), ClientConstants.HOME_TAB_POSITION);
}

@Inject
public HomePresenter(final EventBus eventBus, final MyView view, final MyProxy proxy) {
    super(eventBus, view, proxy);
}

@Override
protected void revealInParent() {
    RevealContentEvent.fire(this, ManagementTabsPresenter.TYPE_MAIN_CONTENT_SLOT, this);
}
}





public class ManagementTabsPresenter extends TabContainerPresenter<ManagementTabsPresenter.MyView, ManagementTabsPresenter.MyProxy> {

/**
 * {@link ManagementTabsPresenter}'s proxy.
 */
@ProxyStandard
public interface MyProxy extends Proxy<ManagementTabsPresenter> {
}

/**
 * {@link ManagementTabsPresenter}'s view.
 */
public interface MyView extends TabView {
}

/**
 * Fired by child proxie's when their tab content is changed.
 */
@ChangeTab
public static final Type<ChangeTabHandler> TYPE_Management_ChangeTab = new Type<ChangeTabHandler>();

/**
 * Use this in leaf presenters, inside their {@link #revealInParent} method.
 */
@ContentSlot
public static final GwtEvent.Type<RevealContentHandler<?>> TYPE_MAIN_CONTENT_SLOT = MainPresenter.CENTER_SLOT;


/**
 * This will be the event sent to our "unknown" child presenters, in order for
 * them to register their tabs.
 */
@RequestTabs
public static final Type<RequestTabsHandler> TYPE_Management_RequestTabs = new Type<RequestTabsHandler>();

@Inject
public ManagementTabsPresenter(final EventBus eventBus, final MyView view,
                               final MyProxy proxy,  AppPlaceManager appPlaceManager) {
    super(eventBus, view, proxy,TYPE_MAIN_CONTENT_SLOT, TYPE_Management_RequestTabs, TYPE_Management_ChangeTab);
}


@Override
protected void revealInParent() {
    RevealContentEvent.fire(this,  MainPresenter.WEST_SLOT, this);
}
}



public class SettingsTabsPresenter extends TabContainerPresenter<SettingsTabsPresenter.MyView, SettingsTabsPresenter.MyProxy> {

/**
 * {@link SettingsTabsPresenter}'s proxy.
 */
@ProxyStandard
public interface MyProxy extends Proxy<SettingsTabsPresenter> {
}

/**
 * {@link SettingsTabsPresenter}'s view.
 */
public interface MyView extends TabView {
}

/**
 * Fired by child proxie's when their tab content is changed.
 */
@ChangeTab
public static final Type<ChangeTabHandler> TYPE_Settings_ChangeTab = new Type<ChangeTabHandler>();

/**
 * Use this in leaf presenters, inside their {@link #revealInParent} method.
 */
@ContentSlot
public static final GwtEvent.Type<RevealContentHandler<?>> TYPE_MAIN_CONTENT_SLOT = MainPresenter.CENTER_SLOT;


/**
 * This will be the event sent to our "unknown" child presenters, in order for
 * them to register their tabs.
 */
@RequestTabs
public static final Type<RequestTabsHandler> TYPE_Settings_RequestTabs = new Type<RequestTabsHandler>();

@Inject
public ManagementTabsPresenter(final EventBus eventBus, final MyView view,
                               final MyProxy proxy,  AppPlaceManager appPlaceManager) {
    super(eventBus, view, proxy,TYPE_MAIN_CONTENT_SLOT, TYPE_Settings_RequestTabs, TYPE_Settings_ChangeTab);
}


@Override
protected void revealInParent() {
    RevealContentEvent.fire(this,  MainPresenter.WEST_SLOT, this);
}
}




public class MainPresenter extends Presenter<MainPresenter.MyView, MainPresenter.MyProxy>{

@Inject VSMRequestFactory requestFactory;
@Inject VSMMessages vsmMessages;
@Inject VSMExceptionMessages vsmExceptionMessages;
@Inject EventBus eventBus;

@ProxyStandard
@NoGatekeeper
public interface MyProxy extends Proxy<MainPresenter> {
}

public interface MyView extends View {

}

@ContentSlot
public static final Type<RevealContentHandler<?>> SOUTH_SLOT = new Type<RevealContentHandler<?>>();
@ContentSlot
public static final Type<RevealContentHandler<?>> WEST_SLOT = new Type<RevealContentHandler<?>>();
@ContentSlot
public static final Type<RevealContentHandler<?>> CENTER_SLOT = new Type<RevealContentHandler<?>>();
@ContentSlot
public static final Type<RevealContentHandler<?>> NORTH_SLOT = new Type<RevealContentHandler<?>>();

@Inject
public MainPresenter(EventBus eventBus, MyView view, MyProxy proxy) {
    super(eventBus, view, proxy);
}

@Override
protected void revealInParent() {
    RevealRootLayoutContentEvent.fire(this, this);
}

@Override
protected void onReveal() {
    super.onReveal();
    initializeAppUser();
}

}
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1 回答 1

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这应该是一个事件问题，当您选择一个选项卡时，SelectionEvent 可能会被错误的选项卡消耗。你能添加一些关于标签初始化的代码吗？

于 2012-07-04T08:01:35.473 回答