This allows for more "intuitive" drag and drop behavior. When I drop something into the world and a morph is opened for it than the morph is displayed at the position where the element was dropped. For a simple example so the gif attached.

To avoid confusions: I have already moved the change into trunk. However, I am thankful for you bringing this up as I am not sure about all implications yet.
________________________________________
From: Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org> on behalf of H. Hirzel <hannes.hirzel at gmail.com>
Sent: Wednesday, March 22, 2017 10:02
To: squeak-dev at lists.squeakfoundation.org
Subject: Re: [squeak-dev] The Inbox: Morphic-pre.1329.mcz

Could you please give more details and a use case? (screen shot)

--Hannes

On Wed, 15 Mar 2017 15:16:31 0000, commits at source.squeak.org
<commits at source.squeak.org> wrote:
> A new version of Morphic was added to project The Inbox:
> http://source.squeak.org/inbox/Morphic-pre.1329.mcz
>
> ==================== Summary ====================
>
> Name: Morphic-pre.1329
> Author: pre
> Time: 15 March 2017, 4:16:07.772309 pm
> UUID: bb5c49b1-402a-9443-b129-ae2e0f250f8f
> Ancestors: Morphic-edc.1328
>
> Changes the accept dropping behavior of the world to open the morph for a
> dropped object where it was dropped.
>
> =============== Diff against Morphic-edc.1328 ===============
>
> Item was changed:
>   ----- Method: PasteUpMorph>>acceptDroppingMorph:event: (in category
> 'dropping/grabbing') -----
>   acceptDroppingMorph: dropped event: evt
>       "The supplied morph, known to be acceptable to the receiver, is now to be
> assimilated; the precipitating event is supplied"
>
>       | aMorph |
>       aMorph := self morphToDropFrom: dropped.
>       self isWorldMorph
>               ifTrue:["Add the given morph to this world and start stepping it if it
> wants to be."
> +                             aMorph position: evt position.
>                               self addMorphFront: aMorph.
>                               (aMorph fullBounds intersects: self viewBox) ifFalse:
>                                       [Beeper beep.  aMorph position: self bounds center]]
>               ifFalse:[super acceptDroppingMorph: aMorph event: evt].
>
>       aMorph submorphsDo: [:m | (m isKindOf: HaloMorph) ifTrue: [m delete]].
>       aMorph allMorphsDo:  "Establish any penDown morphs in new world"
>               [:m | | tfm mm |
>               m player ifNotNil:
>                       [m player getPenDown ifTrue:
>                               [((mm := m player costume) notNil and: [(tfm := mm owner
> transformFrom: self) notNil])
>                                       ifTrue: [self noteNewLocation: (tfm localPointToGlobal: mm
> referencePosition)
>                                                                       forPlayer: m player]]]].
>
>       self isPartsBin
>               ifTrue:
>                       [aMorph isPartsDonor: true.
>                       aMorph stopSteppingSelfAndSubmorphs.
>                       aMorph suspendEventHandler]
>               ifFalse:
>                       [self world startSteppingSubmorphsOf: aMorph].
>
>   "   self presenter morph: aMorph droppedIntoPasteUpMorph: self."
>       self griddingOn ifTrue: [aMorph position: (self gridPoint: aMorph
> position)].
>       self showingListView ifTrue:
>               [self sortSubmorphsBy: (self valueOfProperty: #sortOrder).
>               self currentWorld abandonAllHalos].
>
>       self bringTopmostsToFront.
>   !
>
>
>

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