GWTP的嵌套演示者 [英] Nested presenters with GWTP

问题描述

我的主演示者中有内容位置，如何在加载应用程序时将家庭演示者放在一个位置中，将菜单位置放置在另一个位置中?

I have content slots in my mainpresenter, how can i put, when app load, put the home presenter in one slot and the menu slot in the another ?

还是不可能?

提前谢谢.

推荐答案

可以！在下面的示例代码中，我假设您的HomePresenter是一个地方并扩展了Presenter，而您的MenuPresenter则扩展了PresenterWidget.
在您的MainPresenter中:

Yes you can ! In the following example code, I assume that your HomePresenter is a place and extends Presenter, and your MenuPresenter extends PresenterWidget.
In your MainPresenter :

@ContentSlot public static final Type<RevealContentHandler<?>> MAIN_SLOT = new Type<RevealContentHandler<?>>();  
@ContentSlot public static final Type<RevealContentHandler<?>> MENU_SLOT = new Type<RevealContentHandler<?>>();

@Override
protected void onReveal() {
    super.onReveal();
    setInSlot(MENU_SLOT, menuPresenter);
}

在您的HomePresenter中:

In your HomePresenter :

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

然后在MainView中:

Then in MainView :

@UiField Panel mainContainer;
@UiField Panel menuContainer;

@Override
public void setInSlot(Object slot, Widget content) {
    if (slot == MainPresenter.MAIN_SLOT) {
        mainContainer.clear();
        mainContainer.add(content);
    } else if (slot == MainPresenter.MENU_SLOT) {
        menuContainer.clear();
        menuContainer.add(content);
    } else {
        super.setInSlot(slot, content);
    }
}

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