KaraDock

Dock layout engine based on Karax framework.

Example:

const border = "4px solid black"
const dropPlaceholderColor = "rgba(26, 135, 230, 0.5)"
const bodyColor = "rgb(78, 79, 81)"
const PanelAName = "Panel A"
const PanelBName = "Panel B"
const PanelCName = "Panel C"
const PanelDName = "Panel D"
const PanelEName = "Panel E"

var config = Config(
  columnStyle: proc(config; path: ColumnPath): VStyle =
    style(borderLeft ~ (if path != 0: border else: "0")),

  columnDropPlaceholderStyle: proc(config; path: ColumnPath): VStyle =
    style(backgroundColor ~ dropPlaceholderColor),

  rowStyle: proc(config; path: RowPath): VStyle =
    style(
      borderTop ~ (if path.index != 0: border else: "0"),
      backgroundColor ~ bodyColor
    ),

  rowHeaderStyle: proc(config; path: RowPath): VStyle =
    style(backgroundColor ~ "black"),

  rowDropPlaceholderStyle: proc(config; path: RowPath): VStyle =
    style(backgroundColor ~ dropPlaceholderColor),

  panelNameStyle: proc(config; path: PanelPath): VStyle =
    let row = getRow(config=config, path=path.rowPath)
    let isActive = row.activePanel == path.index
    result = style(
      height ~ "26px",
      lineHeight ~ "26px",
      paddingLeft ~ "15px",
      paddingRight ~ "15px",
      fontWeight ~ "500",
      backgroundColor ~ (if isActive: bodyColor else: "black"),
      color ~ (if isActive: "#c7c7c8" else: "#666666")
    ),

  panelNameDropPlaceholderStyle: proc(config; path: PanelPath): VStyle =
    style(backgroundColor ~ dropPlaceholderColor),

  panelBodyStyle: proc(config; path: PanelPath): VStyle =
    style(padding ~ "5px"),

  resizerStyle: style(backgroundColor ~ "rgba(255, 255, 255, 0.5)"),

  onupdate: proc(configUpd: Config) =
    #e.g. save configUpd.columns to LocalStorage
    redraw(),

  width: window.innerWidth,
  height: window.innerHeight,

  columns: @[
    Column(
      width: 250,
      rows: @[
        Row(
          height: 60,
          activePanel: 0,
          panels: @[
            Panel(
              name: PanelAName,
              isWorkingArea: false,
              forceDisplayName: true,
              minWidthPx: 250,
              minHeightPx: 200,
              body: buildHtml(text PanelAName)
            )
          ]
        ),
        Row(
          height: 40,
          activePanel: 1,
          panels: @[
            Panel(
              name: PanelBName,
              isWorkingArea: false,
              forceDisplayName: true,
              minWidthPx: 250,
              minHeightPx: 200,
              body: buildHtml(text PanelBName)
            ),
            Panel(
              name: PanelCName,
              isWorkingArea: false,
              forceDisplayName: true,
              minWidthPx: 250,
              minHeightPx: 200,
              body: buildHtml(text PanelCName)
            )
          ]
        )
      ]
    ),

    Column(
      width: 100,
      rows: @[
        Row(
          height: 100,
          activePanel: 0,
          panels: @[
            Panel(
              name: PanelDName,
              isWorkingArea: true,
              forceDisplayName: false,
              minWidthPx: 400,
              minHeightPx: 300,
              body: buildHtml(text PanelDName)
            )
          ]
        )
      ]
    ),

    Column(
      width: 200,
      rows: @[
        Row(
          height: 100,
          activePanel: 0,
          panels: @[
            Panel(
              name: PanelEName,
              isWorkingArea: false,
              forceDisplayName: true,
              minWidthPx: 200,
              minHeightPx: 300,
              body: buildHtml(text PanelEName)
            )
          ]
        )
      ]
    )
  ]
)

window.addEventListener(cstring"resize", proc(event) =
  config.width = window.innerWidth
  config.height = window.innerHeight
  redraw()
)

proc createDom(): VNode =
  let style = style(
    color ~ "white",
    fontSize ~ "16px"
  )

  result = buildHtml(tdiv(style=style)):
    karaDock(config)

setRenderer createDom

To run the example above:

  nimble install # For first time

  cd examples/
  nim js complex.nim
  open complex.html

TODO

• Use UUID instead of numeric indexes as panel/row/column paths.
• Automatically collapse/expand rows based on current available config.height and sum of Panel.minHeightPx.
• Automatically wrap right columns to the left based on current available config.width and Column.width.

License

This library is licensed under the MIT license. Read LICENSE file for details.

Copyright (c) 2017 Pragmagic, Inc.