elm-treeview

A customizable ELM treeview component.

DEMOS

Example

Basic example with defaut options:

import Html
import Treeview

styles : Styles
styles =
  [ T.Style "folder" ("folder yellow", "folder-open yellow") ""
  , T.Style "archive" ("file-archive-o", "file-archive-o") ""
  , T.Style "word" ("file-word-o", "file-word-o") "blue"
  , T.Style "image" ("file-image-o", "file-image-o") ""
  , T.Style "pdf" ("file-pdf-o", "file-pdf-o") "red"
  , T.Style "powerpoint" ("file-powerpoint-o", "file-powerpoint-o") "orange"
  , T.Style "excel" ("file-excel-o", "file-excel-o") "green"
  ]

model : Model
model =
  [ T.node "pA" "Project A" "folder" False <| Just [
      T.node "pAg1" "Report 1" "folder" False <| Just [
        T.node "pAg1f1" "report_1_revA.pdf" "pdf" True Nothing,
        T.node "pAg1f2" "report_1_revB.pdf" "pdf" True Nothing,
        T.node "pAg1f3" "report_1_revC.pdf" "pdf" True Nothing
      ],
      T.node "pAg2" "Report 2" "folder" False <| Just [
        T.node "pAg2f1" "report_2_revA.pdf" "pdf" True Nothing,
        T.node "pAg2f2" "report_2_revB.pdf" "pdf" True Nothing
      ],
      T.node "pAf1" "lorem.doc" "word" True Nothing,
      T.node "pAf2" "ipsum.xls" "excel" True Nothing
    ],
    T.node "pB" "Keynote" "folder" False <| Just [
      T.node "pBf1" "workshop_part1.ppt" "powerpoint" True Nothing,
      T.node "pBf2" "workshop_part2.ppt" "powerpoint" True Nothing,
      T.node "pBf3" "image1.png" "image" True Nothing,
      T.node "pBf4" "image2.ppt" "image" True Nothing,
      T.node "pBf5" "image3.ppt" "image" True Nothing,
      T.node "pBf6" "image4.ppt" "image" True Nothing
    ]
  ]

config : T.Config
config = T.default styles


main : Program Never T.Model T.Msg
main =
  Html.beginnerProgram
    { model = model
    , view = T.view config
    , update = T.update
    }

With search input:

config : T.Config
config =
  let
    d = T.default styles
  in
    {d | search = { enable = True}}

With checkbox selection:

config : T.Config
config =
  let
    d = T.default styles
  in
    {d | checkbox = { enable = True, multiple = True, cascade = True}}

Theme

See the treeview.scss file in the styles folder to customize the theme.

Options

Name	Type	Default	Description
checkbox.enable	Bool	False	Activate the checkbox selection for each node.
checkbox.multiple	Bool	False	Multiple nodes can be selected.
checkbox.cascade	Bool	False	Enable the cascading selection (the children node will selected if the parent is selected).
search.enable	Bool	False	Activate the search toolbar.
sort	Sort	None	Sort the nodes: Asc = ascending, Desc = descending.
look.theme	String	""	Apply the theme.
look.styles	[Styles]	[]	Define the styles (CSS class and icons) for nodes.

Documentation

See documentation here.

Usage

To run the examples:

$ cd examples
$ npm i
$ npm run dev

Open localhost:8080.

TODO

• updated for ELM 0.19.x
• search toolbar
• checkbox
• ajax
• interface for JS
• other themes
• contextual menu
• unit test

Contributing

Feedback and contributions are very welcome.

License

This project is licensed under Mozilla Public License Version 2.0.