touchpage 0.2.1

control panel server with shared-state web controls
Documentation 
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// --------------------------------------------------------
// control update messages.
// --------------------------------------------------------

/*

  code in elm.  you never get label updates from there.

  JE.object [ ("controlType", JE.string "button")
            , ("controlId", SvgThings.encodeControlId um.control_id)
            , ("updateType", encodeUpdateType um.updateType)
            ]

  JE.object [ ("controlType", JE.string "slider")
            , ("controlId", SvgThings.encodeControlId um.control_id)
            , ("updateType", encodeUpdateType um.updateType)
            , ("location", (JE.float um.location))

*/


#[derive(Debug, Clone)]
pub enum PressState {
  Pressed,
  Unpressed,
}

#[derive(Debug, Clone)]
pub enum UpdateMsg {
  Button {
    control_id: Vec<i32>,
    state: Option<PressState>,
    label: Option<String>,
  },
  Slider {
    control_id: Vec<i32>,
    state: Option<PressState>,
    location: Option<f64>,
    label: Option<String>,
  },
  XY {
    control_id: Vec<i32>,
    state: Option<PressState>,
    location: Option<(f32,f32)>,
    label: Option<String>,
  },
  Label {
    control_id: Vec<i32>,
    label: String,
  },
}