Prepare drag-drop for items into folders

modules/webapp/src/main/elm/Comp/FolderSelect.elm

@@ -3,13 +3,16 @@ module Comp.FolderSelect exposing
     , Msg
     , init
     , update
+    , updateDrop
     , view
+    , viewDrop
     )
 
 import Api.Model.FolderItem exposing (FolderItem)
 import Html exposing (..)
 import Html.Attributes exposing (..)
 import Html.Events exposing (onClick)
+import Html5.DragDrop as DD
 import Util.ExpandCollapse
 import Util.List
 
@@ -36,10 +39,24 @@ init all =
 type Msg
     = Toggle FolderItem
     | ToggleExpand
+    | FolderDDMsg (DD.Msg String String)
 
 
 update : Msg -> Model -> ( Model, Maybe FolderItem )
 update msg model =
+    let
+        ( m, f, _ ) =
+            updateDrop DD.init msg model
+    in
+    ( m, f )
+
+
+updateDrop :
+    DD.Model String String
+    -> Msg
+    -> Model
+    -> ( Model, Maybe FolderItem, DD.Model String String )
+updateDrop dropModel msg model =
     case msg of
         Toggle item ->
             let
@@ -53,13 +70,36 @@ update msg model =
                 model_ =
                     { model | selected = selection }
             in
-            ( model_, selectedFolder model_ )
+            ( model_, selectedFolder model_, dropModel )
 
         ToggleExpand ->
             ( { model | expanded = not model.expanded }
             , selectedFolder model
+            , dropModel
             )
 
+        FolderDDMsg lm ->
+            let
+                ( dm_, result ) =
+                    DD.update lm dropModel
+
+                _ =
+                    case result of
+                        Just ( item, folder, _ ) ->
+                            let
+                                _ =
+                                    Debug.log "item menu" item
+
+                                _ =
+                                    Debug.log "folder menu" folder
+                            in
+                            Cmd.none
+
+                        Nothing ->
+                            Cmd.none
+            in
+            ( model, selectedFolder model, dm_ )
+
 
 selectedFolder : Model -> Maybe FolderItem
 selectedFolder model =
@@ -75,7 +115,12 @@ selectedFolder model =
 
 
 view : Int -> Model -> Html Msg
-view constr model =
+view =
+    viewDrop DD.init
+
+
+viewDrop : DD.Model String String -> Int -> Model -> Html Msg
+viewDrop dropModel constr model =
     div [ class "ui list" ]
         [ div [ class "item" ]
             [ i [ class "folder open icon" ] []
@@ -84,22 +129,22 @@ view constr model =
                     [ text "Folders"
                     ]
                 , div [ class "ui relaxed list" ]
-                    (renderItems constr model)
+                    (renderItems dropModel constr model)
                 ]
             ]
         ]
 
 
-renderItems : Int -> Model -> List (Html Msg)
-renderItems constr model =
+renderItems : DD.Model String String -> Int -> Model -> List (Html Msg)
+renderItems dropModel constr model =
     if constr <= 0 then
-        List.map (viewItem model) model.all
+        List.map (viewItem dropModel model) model.all
 
     else if model.expanded then
-        List.map (viewItem model) model.all ++ collapseToggle constr model
+        List.map (viewItem dropModel model) model.all ++ collapseToggle constr model
 
     else
-        List.map (viewItem model) (List.take constr model.all) ++ expandToggle constr model
+        List.map (viewItem dropModel model) (List.take constr model.all) ++ expandToggle constr model
 
 
 expandToggle : Int -> Model -> List (Html Msg)
@@ -118,8 +163,8 @@ collapseToggle max model =
         ToggleExpand
 
 
-viewItem : Model -> FolderItem -> Html Msg
-viewItem model item =
+viewItem : DD.Model String String -> Model -> FolderItem -> Html Msg
+viewItem dropModel model item =
     let
         selected =
             Just item.id == model.selected
@@ -130,15 +175,21 @@ viewItem model item =
 
             else
                 "folder outline icon"
+
+        highlightDrop =
+            DD.getDropId dropModel == Just item.id
     in
     a
-        [ classList
+        ([ classList
             [ ( "item", True )
             , ( "active", selected )
+            , ( "current-drop-target", highlightDrop )
             ]
-        , href "#"
-        , onClick (Toggle item)
-        ]
+         , href "#"
+         , onClick (Toggle item)
+         ]
+            ++ DD.droppable FolderDDMsg item.id
+        )
         [ i [ class icon ] []
         , div [ class "content" ]
             [ div [ class "header" ]

modules/webapp/src/main/elm/Comp/ItemCardList.elm

@@ -5,6 +5,7 @@ module Comp.ItemCardList exposing
     , nextItem
     , prevItem
     , update
+    , updateDrag
     , view
     )
 
@@ -20,6 +21,7 @@ import Data.UiSettings exposing (UiSettings)
 import Html exposing (..)
 import Html.Attributes exposing (..)
 import Html.Events exposing (onClick)
+import Html5.DragDrop as DD
 import Markdown
 import Util.List
 import Util.String
@@ -35,6 +37,7 @@ type Msg
     = SetResults ItemLightList
     | AddResults ItemLightList
     | SelectItem ItemLight
+    | ItemDDMsg (DD.Msg String String)
 
 
 init : Model
@@ -60,28 +63,72 @@ prevItem model id =
 
 
 update : Flags -> Msg -> Model -> ( Model, Cmd Msg, Maybe ItemLight )
-update _ msg model =
+update flags msg model =
+    let
+        res =
+            updateDrag DD.init flags msg model
+    in
+    ( res.model, res.cmd, res.selected )
+
+
+type alias UpdateResult =
+    { model : Model
+    , cmd : Cmd Msg
+    , selected : Maybe ItemLight
+    , dragModel : DD.Model String String
+    }
+
+
+updateDrag :
+    DD.Model String String
+    -> Flags
+    -> Msg
+    -> Model
+    -> UpdateResult
+updateDrag dm _ msg model =
     case msg of
         SetResults list ->
             let
                 newModel =
                     { model | results = list }
             in
-            ( newModel, Cmd.none, Nothing )
+            UpdateResult newModel Cmd.none Nothing dm
 
         AddResults list ->
             if list.groups == [] then
-                ( model, Cmd.none, Nothing )
+                UpdateResult model Cmd.none Nothing dm
 
             else
                 let
                     newModel =
                         { model | results = Data.Items.concat model.results list }
                 in
-                ( newModel, Cmd.none, Nothing )
+                UpdateResult newModel Cmd.none Nothing dm
 
         SelectItem item ->
-            ( model, Cmd.none, Just item )
+            UpdateResult model Cmd.none (Just item) dm
+
+        ItemDDMsg lm ->
+            let
+                ( dm_, result ) =
+                    DD.update lm dm
+
+                _ =
+                    case result of
+                        Just ( item, folder, _ ) ->
+                            let
+                                _ =
+                                    Debug.log "item card" item
+
+                                _ =
+                                    Debug.log "folder card" folder
+                            in
+                            Cmd.none
+
+                        Nothing ->
+                            Cmd.none
+            in
+            UpdateResult model Cmd.none Nothing dm_
 
 
 
@@ -139,14 +186,16 @@ viewItem settings item =
             "blue"
     in
     a
-        [ classList
+        ([ classList
             [ ( "ui fluid card", True )
             , ( newColor, not isConfirmed )
             ]
-        , id item.id
-        , href "#"
-        , onClick (SelectItem item)
-        ]
+         , id item.id
+         , href "#"
+         , onClick (SelectItem item)
+         ]
+            ++ DD.draggable ItemDDMsg item.id
+        )
         [ div [ class "content" ]
             [ div
                 [ class "header"

modules/webapp/src/main/elm/Comp/SearchMenu.elm

@@ -1,11 +1,14 @@
 module Comp.SearchMenu exposing
-    ( Model
+    ( DragDropData
+    , Model
     , Msg(..)
     , NextState
     , getItemSearch
     , init
     , update
+    , updateDrop
     , view
+    , viewDrop
     )
 
 import Api
@@ -29,6 +32,7 @@ import DatePicker exposing (DatePicker)
 import Html exposing (..)
 import Html.Attributes exposing (..)
 import Html.Events exposing (onCheck, onClick, onInput)
+import Html5.DragDrop as DD
 import Http
 import Util.Html exposing (KeyCode(..))
 import Util.Maybe
@@ -127,33 +131,6 @@ init =
     }
 
 
-type Msg
-    = Init
-    | TagSelectMsg Comp.TagSelect.Msg
-    | DirectionMsg (Comp.Dropdown.Msg Direction)
-    | OrgMsg (Comp.Dropdown.Msg IdName)
-    | CorrPersonMsg (Comp.Dropdown.Msg IdName)
-    | ConcPersonMsg (Comp.Dropdown.Msg IdName)
-    | ConcEquipmentMsg (Comp.Dropdown.Msg Equipment)
-    | FromDateMsg Comp.DatePicker.Msg
-    | UntilDateMsg Comp.DatePicker.Msg
-    | FromDueDateMsg Comp.DatePicker.Msg
-    | UntilDueDateMsg Comp.DatePicker.Msg
-    | ToggleInbox
-    | GetTagsResp (Result Http.Error TagCloud)
-    | GetOrgResp (Result Http.Error ReferenceList)
-    | GetEquipResp (Result Http.Error EquipmentList)
-    | GetPersonResp (Result Http.Error ReferenceList)
-    | SetName String
-    | SetAllName String
-    | SetFulltext String
-    | ResetForm
-    | KeyUpMsg (Maybe KeyCode)
-    | ToggleNameHelp
-    | FolderSelectMsg Comp.FolderSelect.Msg
-    | GetFolderResp (Result Http.Error FolderList)
-
-
 getDirection : Model -> Maybe Direction
 getDirection model =
     let
@@ -218,19 +195,53 @@ getItemSearch model =
 -- Update
 
 
-type alias NextState =
-    { modelCmd : ( Model, Cmd Msg )
-    , stateChange : Bool
+type Msg
+    = Init
+    | TagSelectMsg Comp.TagSelect.Msg
+    | DirectionMsg (Comp.Dropdown.Msg Direction)
+    | OrgMsg (Comp.Dropdown.Msg IdName)
+    | CorrPersonMsg (Comp.Dropdown.Msg IdName)
+    | ConcPersonMsg (Comp.Dropdown.Msg IdName)
+    | ConcEquipmentMsg (Comp.Dropdown.Msg Equipment)
+    | FromDateMsg Comp.DatePicker.Msg
+    | UntilDateMsg Comp.DatePicker.Msg
+    | FromDueDateMsg Comp.DatePicker.Msg
+    | UntilDueDateMsg Comp.DatePicker.Msg
+    | ToggleInbox
+    | GetTagsResp (Result Http.Error TagCloud)
+    | GetOrgResp (Result Http.Error ReferenceList)
+    | GetEquipResp (Result Http.Error EquipmentList)
+    | GetPersonResp (Result Http.Error ReferenceList)
+    | SetName String
+    | SetAllName String
+    | SetFulltext String
+    | ResetForm
+    | KeyUpMsg (Maybe KeyCode)
+    | ToggleNameHelp
+    | FolderSelectMsg Comp.FolderSelect.Msg
+    | GetFolderResp (Result Http.Error FolderList)
+
+
+type alias DragDropData =
+    { folderDrop : DD.Model String String
     }
 
 
-noChange : ( Model, Cmd Msg ) -> NextState
-noChange p =
-    NextState p False
+type alias NextState =
+    { model : Model
+    , cmd : Cmd Msg
+    , stateChange : Bool
+    , dragDrop : DragDropData
+    }
 
 
 update : Flags -> UiSettings -> Msg -> Model -> NextState
-update flags settings msg model =
+update =
+    updateDrop (DragDropData DD.init)
+
+
+updateDrop : DragDropData -> Flags -> UiSettings -> Msg -> Model -> NextState
+updateDrop dd flags settings msg model =
     case msg of
         Init ->
             let
@@ -257,9 +268,9 @@ update flags settings msg model =
                             ]
                         )
             in
-            noChange
-                ( mdp
-                , Cmd.batch
+            { model = mdp
+            , cmd =
+                Cmd.batch
                     [ Api.getTagCloud flags GetTagsResp
                     , Api.getOrgLight flags GetOrgResp
                     , Api.getEquipments flags "" GetEquipResp
@@ -267,7 +278,9 @@ update flags settings msg model =
                     , Api.getFolders flags "" False GetFolderResp
                     , cdp
                     ]
-                )
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         ResetForm ->
             let
@@ -286,10 +299,18 @@ update flags settings msg model =
                 model_ =
                     { model | tagSelectModel = selectModel }
             in
-            noChange ( model_, Cmd.none )
+            { model = model_
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         GetTagsResp (Err _) ->
-            noChange ( model, Cmd.none )
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         GetEquipResp (Ok equips) ->
             let
@@ -299,7 +320,11 @@ update flags settings msg model =
             update flags settings (ConcEquipmentMsg opts) model
 
         GetEquipResp (Err _) ->
-            noChange ( model, Cmd.none )
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         GetOrgResp (Ok orgs) ->
             let
@@ -309,98 +334,112 @@ update flags settings msg model =
             update flags settings (OrgMsg opts) model
 
         GetOrgResp (Err _) ->
-            noChange ( model, Cmd.none )
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         GetPersonResp (Ok ps) ->
             let
                 opts =
                     Comp.Dropdown.SetOptions ps.items
+
+                next1 =
+                    updateDrop dd flags settings (CorrPersonMsg opts) model
+
+                next2 =
+                    updateDrop next1.dragDrop flags settings (ConcPersonMsg opts) next1.model
             in
-            noChange <|
-                Util.Update.andThen1
-                    [ update flags settings (CorrPersonMsg opts) >> .modelCmd
-                    , update flags settings (ConcPersonMsg opts) >> .modelCmd
-                    ]
-                    model
+            next2
 
         GetPersonResp (Err _) ->
-            noChange ( model, Cmd.none )
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         TagSelectMsg m ->
             let
                 ( m_, sel ) =
                     Comp.TagSelect.update m model.tagSelectModel
             in
-            NextState
-                ( { model
+            { model =
+                { model
                     | tagSelectModel = m_
                     , tagSelection = sel
-                  }
-                , Cmd.none
-                )
-                (sel /= model.tagSelection)
+                }
+            , cmd = Cmd.none
+            , stateChange = sel /= model.tagSelection
+            , dragDrop = dd
+            }
 
         DirectionMsg m ->
             let
                 ( m2, c2 ) =
                     Comp.Dropdown.update m model.directionModel
             in
-            NextState
-                ( { model | directionModel = m2 }
-                , Cmd.map DirectionMsg c2
-                )
-                (isDropdownChangeMsg m)
+            { model = { model | directionModel = m2 }
+            , cmd = Cmd.map DirectionMsg c2
+            , stateChange = isDropdownChangeMsg m
+            , dragDrop = dd
+            }
 
         OrgMsg m ->
             let
                 ( m2, c2 ) =
                     Comp.Dropdown.update m model.orgModel
             in
-            NextState
-                ( { model | orgModel = m2 }
-                , Cmd.map OrgMsg c2
-                )
-                (isDropdownChangeMsg m)
+            { model = { model | orgModel = m2 }
+            , cmd = Cmd.map OrgMsg c2
+            , stateChange = isDropdownChangeMsg m
+            , dragDrop = dd
+            }
 
         CorrPersonMsg m ->
             let
                 ( m2, c2 ) =
                     Comp.Dropdown.update m model.corrPersonModel
             in
-            NextState
-                ( { model | corrPersonModel = m2 }
-                , Cmd.map CorrPersonMsg c2
-                )
-                (isDropdownChangeMsg m)
+            { model = { model | corrPersonModel = m2 }
+            , cmd = Cmd.map CorrPersonMsg c2
+            , stateChange = isDropdownChangeMsg m
+            , dragDrop = dd
+            }
 
         ConcPersonMsg m ->
             let
                 ( m2, c2 ) =
                     Comp.Dropdown.update m model.concPersonModel
             in
-            NextState
-                ( { model | concPersonModel = m2 }
-                , Cmd.map ConcPersonMsg c2
-                )
-                (isDropdownChangeMsg m)
+            { model = { model | concPersonModel = m2 }
+            , cmd = Cmd.map ConcPersonMsg c2
+            , stateChange = isDropdownChangeMsg m
+            , dragDrop = dd
+            }
 
         ConcEquipmentMsg m ->
             let
                 ( m2, c2 ) =
                     Comp.Dropdown.update m model.concEquipmentModel
             in
-            NextState
-                ( { model | concEquipmentModel = m2 }
-                , Cmd.map ConcEquipmentMsg c2
-                )
-                (isDropdownChangeMsg m)
+            { model = { model | concEquipmentModel = m2 }
+            , cmd = Cmd.map ConcEquipmentMsg c2
+            , stateChange = isDropdownChangeMsg m
+            , dragDrop = dd
+            }
 
         ToggleInbox ->
             let
                 current =
                     model.inboxCheckbox
             in
-            NextState ( { model | inboxCheckbox = not current }, Cmd.none ) True
+            { model = { model | inboxCheckbox = not current }
+            , cmd = Cmd.none
+            , stateChange = True
+            , dragDrop = dd
+            }
 
         FromDateMsg m ->
             let
@@ -415,11 +454,11 @@ update flags settings msg model =
                         _ ->
                             Nothing
             in
-            NextState
-                ( { model | fromDateModel = dp, fromDate = nextDate }
-                , Cmd.none
-                )
-                (model.fromDate /= nextDate)
+            { model = { model | fromDateModel = dp, fromDate = nextDate }
+            , cmd = Cmd.none
+            , stateChange = model.fromDate /= nextDate
+            , dragDrop = dd
+            }
 
         UntilDateMsg m ->
             let
@@ -434,11 +473,11 @@ update flags settings msg model =
                         _ ->
                             Nothing
             in
-            NextState
-                ( { model | untilDateModel = dp, untilDate = nextDate }
-                , Cmd.none
-                )
-                (model.untilDate /= nextDate)
+            { model = { model | untilDateModel = dp, untilDate = nextDate }
+            , cmd = Cmd.none
+            , stateChange = model.untilDate /= nextDate
+            , dragDrop = dd
+            }
 
         FromDueDateMsg m ->
             let
@@ -453,11 +492,11 @@ update flags settings msg model =
                         _ ->
                             Nothing
             in
-            NextState
-                ( { model | fromDueDateModel = dp, fromDueDate = nextDate }
-                , Cmd.none
-                )
-                (model.fromDueDate /= nextDate)
+            { model = { model | fromDueDateModel = dp, fromDueDate = nextDate }
+            , cmd = Cmd.none
+            , stateChange = model.fromDueDate /= nextDate
+            , dragDrop = dd
+            }
 
         UntilDueDateMsg m ->
             let
@@ -472,79 +511,98 @@ update flags settings msg model =
                         _ ->
                             Nothing
             in
-            NextState
-                ( { model | untilDueDateModel = dp, untilDueDate = nextDate }
-                , Cmd.none
-                )
-                (model.untilDueDate /= nextDate)
+            { model = { model | untilDueDateModel = dp, untilDueDate = nextDate }
+            , cmd = Cmd.none
+            , stateChange = model.untilDueDate /= nextDate
+            , dragDrop = dd
+            }
 
         SetName str ->
             let
                 next =
                     Util.Maybe.fromString str
             in
-            NextState
-                ( { model | nameModel = next }
-                , Cmd.none
-                )
-                False
+            { model = { model | nameModel = next }
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         SetAllName str ->
             let
                 next =
                     Util.Maybe.fromString str
             in
-            NextState
-                ( { model | allNameModel = next }
-                , Cmd.none
-                )
-                False
+            { model = { model | allNameModel = next }
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         SetFulltext str ->
             let
                 next =
                     Util.Maybe.fromString str
             in
-            NextState
-                ( { model | fulltextModel = next }
-                , Cmd.none
-                )
-                False
+            { model = { model | fulltextModel = next }
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         KeyUpMsg (Just Enter) ->
-            NextState ( model, Cmd.none ) True
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = True
+            , dragDrop = dd
+            }
 
         KeyUpMsg _ ->
-            NextState ( model, Cmd.none ) False
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         ToggleNameHelp ->
-            NextState ( { model | showNameHelp = not model.showNameHelp }, Cmd.none ) False
+            { model = { model | showNameHelp = not model.showNameHelp }
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         GetFolderResp (Ok fs) ->
             let
                 model_ =
                     { model | folderList = Comp.FolderSelect.init fs.items }
             in
-            NextState
-                ( model_, Cmd.none )
-                False
+            { model = model_
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         GetFolderResp (Err _) ->
-            noChange ( model, Cmd.none )
+            { model = model
+            , cmd = Cmd.none
+            , stateChange = False
+            , dragDrop = dd
+            }
 
         FolderSelectMsg lm ->
             let
-                ( fsm, sel ) =
-                    Comp.FolderSelect.update lm model.folderList
+                ( fsm, sel, dd_ ) =
+                    Comp.FolderSelect.updateDrop dd.folderDrop lm model.folderList
             in
-            NextState
-                ( { model
+            { model =
+                { model
                     | folderList = fsm
                     , selectedFolder = sel
-                  }
-                , Cmd.none
-                )
-                (model.selectedFolder /= sel)
+                }
+            , cmd = Cmd.none
+            , stateChange = model.selectedFolder /= sel
+            , dragDrop = { dd | folderDrop = dd_ }
+            }
 
 
 
@@ -552,7 +610,12 @@ update flags settings msg model =
 
 
 view : Flags -> UiSettings -> Model -> Html Msg
-view flags settings model =
+view =
+    viewDrop (DragDropData DD.init)
+
+
+viewDrop : DragDropData -> Flags -> UiSettings -> Model -> Html Msg
+viewDrop ddd flags settings model =
     let
         formHeader icon headline =
             div [ class "ui tiny header" ]
@@ -585,7 +648,7 @@ view flags settings model =
             [ Html.map TagSelectMsg (Comp.TagSelect.viewTags settings model.tagSelectModel)
             , Html.map TagSelectMsg (Comp.TagSelect.viewCats settings model.tagSelectModel)
             , Html.map FolderSelectMsg
-                (Comp.FolderSelect.view settings.searchMenuFolderCount model.folderList)
+                (Comp.FolderSelect.viewDrop ddd.folderDrop settings.searchMenuFolderCount model.folderList)
             ]
         , div [ class segmentClass ]
             [ formHeader (Icons.correspondentIcon "")

modules/webapp/src/main/elm/Page/Home/Data.elm

@@ -16,10 +16,11 @@ import Api.Model.ItemLightList exposing (ItemLightList)
 import Api.Model.ItemSearch
 import Comp.FixedDropdown
 import Comp.ItemCardList
-import Comp.SearchMenu
+import Comp.SearchMenu exposing (DragDropData)
 import Data.Flags exposing (Flags)
 import Data.Items
 import Data.UiSettings exposing (UiSettings)
+import Html5.DragDrop as DD
 import Http
 import Throttle exposing (Throttle)
 import Util.Html exposing (KeyCode(..))
@@ -39,6 +40,7 @@ type alias Model =
     , searchType : SearchType
     , searchTypeForm : SearchType
     , contentOnlySearch : Maybe String
+    , dragDropData : DragDropData
     }
 
 
@@ -67,6 +69,9 @@ init flags =
     , searchType = BasicSearch
     , searchTypeForm = defaultSearchType flags
     , contentOnlySearch = Nothing
+    , dragDropData =
+        { folderDrop = DD.init
+        }
     }
 
 

modules/webapp/src/main/elm/Page/Home/Update.elm

@@ -6,6 +6,7 @@ import Comp.ItemCardList
 import Comp.SearchMenu
 import Data.Flags exposing (Flags)
 import Data.UiSettings exposing (UiSettings)
+import Html5.DragDrop as DD
 import Page exposing (Page(..))
 import Page.Home.Data exposing (..)
 import Throttle
@@ -39,10 +40,18 @@ update key flags settings msg model =
         SearchMenuMsg m ->
             let
                 nextState =
-                    Comp.SearchMenu.update flags settings m model.searchMenuModel
+                    Comp.SearchMenu.updateDrop
+                        model.dragDropData
+                        flags
+                        settings
+                        m
+                        model.searchMenuModel
 
                 newModel =
-                    { model | searchMenuModel = Tuple.first nextState.modelCmd }
+                    { model
+                        | searchMenuModel = nextState.model
+                        , dragDropData = nextState.dragDrop
+                    }
 
                 ( m2, c2, s2 ) =
                     if nextState.stateChange && not model.searchInProgress then
@@ -54,18 +63,21 @@ update key flags settings msg model =
             ( m2
             , Cmd.batch
                 [ c2
-                , Cmd.map SearchMenuMsg (Tuple.second nextState.modelCmd)
+                , Cmd.map SearchMenuMsg nextState.cmd
                 ]
             , s2
             )
 
         ItemCardListMsg m ->
             let
-                ( m2, c2, mitem ) =
-                    Comp.ItemCardList.update flags m model.itemListModel
+                result =
+                    Comp.ItemCardList.updateDrag model.dragDropData.folderDrop
+                        flags
+                        m
+                        model.itemListModel
 
                 cmd =
-                    case mitem of
+                    case result.selected of
                         Just item ->
                             Page.set key (ItemDetailPage item.id)
 
@@ -73,8 +85,11 @@ update key flags settings msg model =
                             Cmd.none
             in
             withSub
-                ( { model | itemListModel = m2 }
-                , Cmd.batch [ Cmd.map ItemCardListMsg c2, cmd ]
+                ( { model
+                    | itemListModel = result.model
+                    , dragDropData = { folderDrop = result.dragModel }
+                  }
+                , Cmd.batch [ Cmd.map ItemCardListMsg result.cmd, cmd ]
                 )
 
         ItemSearchResp (Ok list) ->

modules/webapp/src/main/elm/Page/Home/View.elm

@@ -63,7 +63,12 @@ view flags settings model =
                     ]
                 ]
             , div [ class "ui attached fluid segment" ]
-                [ Html.map SearchMenuMsg (Comp.SearchMenu.view flags settings model.searchMenuModel)
+                [ Html.map SearchMenuMsg
+                    (Comp.SearchMenu.viewDrop model.dragDropData
+                        flags
+                        settings
+                        model.searchMenuModel
+                    )
                 ]
             ]
         , div

modules/webapp/src/main/webjar/docspell.css

@@ -166,7 +166,7 @@ textarea.markdown-editor {
     background: rgba(240,248,255,0.4);
 }
 
-.default-layout .ui.menu .item.current-drop-target {
+.default-layout .ui.menu .item.current-drop-target, a.item.current-drop-target {
     background: rgba(0,0,0,0.2);
 }