Bingo
On Sat, May 21, 2016 at 7:40 PM, hulufei <f.calab...@gmail.com> wrote:
> I already figured it out, thanks
>
> Just map children's msg to parent's msg on children's html events, so the
> children's view return same Msg type as parent's, that's how to use
> `TabMsg` inside `Tab.view`
>
> On Sun, May 22, 2016 at 1:34 AM, Nick H <falling.maso...@gmail.com> wrote:
>
>> Can you show us your Tab.view code?
>>
>> Changing the type signature in the manner I suggested will require
>> changes to the function. It will be easier to explain if I can see what you
>> have right now.
>>
>> On Wed, May 18, 2016 at 7:12 PM, Luis Fei <f.calab...@gmail.com> wrote:
>>
>>> Thanks，Nick，sorry for the later reply
>>>
>>> I tried to apply the changes to Tab.view, still have the problem, this
>>> time the compiler complained inferring definition has this type: `(Msg ->
>>> a) -> Model -> List (Html Msg) -> Html Msg`, and I'm confused how to use
>>> this new added TabMsg parameter inside Tab.view
>>>
>>> On Wednesday, May 18, 2016 at 12:36:35 AM UTC+8, Nick H wrote:
>>>>
>>>> Right now, I am guessing your Tab.view has this signature:
>>>>
>>>> Tab.view : Tab.Model -> List (Html Tab.Msg) -> Html Tab.Msg
>>>>
>>>> Try changing it to follow this signature:
>>>>
>>>> Tab.view : (Tab.Msg -> a) -> Tab.Model -> List (Html a) -> Html a
>>>>
>>>> And your Main.view will then look like this:
>>>>
>>>> view model =
>>>> Tab.view TabMsg model.tabModel
>>>> [ App.map LogsMsg <| LogList.view model.logModel ]
>>>>
>>>>
>>>> The other solution that comes to mind would be to nest the
>>>> LogList.Model within Tab.Model and nest LogList.Msg within Tab.Msg, but I
>>>> am guessing you want the Tab component to be more generic than that.
>>>>
>>>> On Tue, May 17, 2016 at 3:26 AM, Luis Fei <f.cal...@gmail.com> wrote:
>>>>
>>>>> Hi, I was trying to upgrade from 0.16 to 0.17, and meet this problem
>>>>>
>>>>> I have a Main.view which contains a Tab.view, and Tab.view contains a
>>>>> LogList.view, so i change the Signal.forwardTo part like this:
>>>>>
>>>>> -- This is Main module
>>>>>
>>>>> type alias Model =
>>>>> { tabModel : Tab.Model
>>>>> , logsModel : LogList.Model
>>>>> }
>>>>>
>>>>> type Msg
>>>>> = TabMsg Tab.Msg
>>>>> | LogMsg LogList.Msg
>>>>>
>>>>> view : Model -> Html Msg
>>>>> view model =
>>>>> App.map TabMsg
>>>>> <| Tab.view model.tabModel
>>>>> [ App.map LogsMsg <| LogList.view model.logModel ]
>>>>>
>>>>>
>>>>> And the compiler complained as the Tab.view is expecting `List (Html
>>>>> Tab.Msg)` but it is `List (Html Msg)`, I understand why the compiler
>>>>> complain like this, the problem is I don't know how to do these kind of
>>>>> multi-level nesting.
>>>>>
>>>>> thanks.
>>>>>
>>>>> BTW, I read
>>>>> https://github.com/evancz/elm-architecture-tutorial/blob/master/nesting/2-counter-list.elm,
>>>>> but it's single child to parent communication.
>>>>>
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>>>>
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