javascript 在 SAPUI5 中实例化片段时传递另一个控制器
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Pass another controller when instantiating a fragment in SAPUI5
提问by njames
In the SAPUI5 / OpenUI5 xmlfragment documentationthe third parameter is a controller for handling actions from the fragment.
在 SAPUI5 / OpenUI5 xmlfragment 文档中，第三个参数是用于处理来自片段的操作的控制器。
This is critical for a dialog fragment where there are buttons to press etc.
这对于有按钮可按下等的对话框片段至关重要。
Most of the time I have seen this instantiated as thisor sap.ui.getCore().byId('<element>').getController())
大多数时候我看到这个实例化为this或sap.ui.getCore().byId('<element>').getController())
See an example at Fragment not get correct Controller
请参阅Fragment 中的示例未获得正确的控制器
Because of the complexity in a particular dialog I would like to have a separate controller for it.
由于特定对话框的复杂性，我想为它设置一个单独的控制器。
I have looked around at this and had a few attempts but so far not successful.
我环顾四周并进行了一些尝试，但到目前为止还没有成功。
I have put a working example on githubof using this.
我在github上放了一个使用this.
But I would like to instantiate Dialog.jsas the controller for the Dialog.fragment.xmlfrom initial.view.controller
但我想实例Dialog.js化为Dialog.fragment.xmlfrom的控制器initial.view.controller
Any takers?
有接班人吗？
Pull requests gladly received.
很高兴收到拉取请求。
The Crux of the example is as follows (this is the initial.controller.js) :
例子的关键如下（这是initial.controller.js）：
sap.ui.controller("sc.test.view.initial", {
oDialog: null,
openTestDialog: function(){
console.log("in open dialog");
// instantiate the other controller
var oDialogController = new sc.test.view.Dialog();
// this next commented line is the 'normal' way to do it
// oDialog = new sap.ui.xmlfragment( "sc.test.view.Dialog", this); //oDialogController);
// this is what I would like to achieve
oDialog = new sap.ui.xmlfragment( "sc.test.view.Dialog", oDialogController);
oDialog.open();
},
onCartDialogCancel:function(oEvent){
// this function would then be in the other controller but how to get a handle on the dialog?
oDialog.close();
}
});
});
Thanks.
谢谢。
采纳答案by qmacro
回答by Jasper_07
only example i could find close to yours was in the Material Shortage Fiori app
我在 Material Shortage Fiori 应用程序中可以找到与您的相似的唯一示例
oCtrl = sap.ui.controller("myapp.fragments.DirectCallDialog");
oDirectCallDialog = sap.ui.xmlfragment("myapp.fragments.DirectCallDialog", oCtrl);
lots of examples of injecting a controller when the fragment was called from a helper class. The helper class promotes reuse, eg same dialog fragment can be called from multiple views/components. The helper class method for the dialog setup is called from within a controller and the oController parameter is set to 'this'.
当从辅助类调用片段时注入控制器的许多示例。helper 类促进重用，例如可以从多个视图/组件调用相同的对话框片段。对话框设置的助手类方法从控制器内调用，oController 参数设置为“this”。
hth jsp
第一个jsp
回答by KynanJ
I copied an existing controller.js, and renamed it.
我复制了一个现有的 controller.js，并重命名了它。
Then, instantiated that as a below, and passed it through with the fragment.
然后，将其实例化为下面的，并通过片段传递它。
var oNewController = new sap.ui.core.mvc.Controller("myProject.DialogController"); this._oDialog = sap.ui.xmlfragment("myPopup","myProject.fragments.myPopup", oNewController);
var oNewController = new sap.ui.core.mvc.Controller("myProject.DialogController"); this._oDialog = sap.ui.xmlfragment("myPopup","myProject.fragments.myPopup", oNewController);
All eventing is now handled in oNewController, rather than the previously used "this"...
所有事件现在都在 oNewController 中处理，而不是以前使用的“this”...
