Calculator

Name: Calculator
Author: Joshua Knauber

Comes with Chopstick

Type a sum in search, like 2^10 / (3+5), 15% of 80 or sqrt(2) * pi, to see the answer. Return copies it; click it to edit.

Open in Chopstick

Already installed? It's in your widget library.

Type it in the notch's search

Calculate sum

What it runs

A widget is a folder of plain files. Here is all of its code.

widget.json

{
  "id": "calculator",
  "name": "Calculator",
  "description": "Type a sum in search, like 2^10 / (3+5), 15% of 80 or sqrt(2) * pi, to see the answer. Return copies it; click it to edit.",
  "icon": "icon.png",
  "anytime": false,
  "initial": "help",
  "commands": {
    "calculate": {
      "description": "Work out a sum and copy the answer (2^10 / (3+5), 80 + 15%, sqrt(2) * pi).",
      "phrase": "Calculate {sum}",
      "inputs": {
        "sum": { "type": "expression", "description": "Arithmetic: + - * / ^, parentheses, %, sqrt sin cos tan log ln abs round floor ceil, pi, e" }
      },
      "preview": { "state": "answered" },
      "do": [ { "copy": "{{input.sum.text}}" }, { "go": "copied" } ]
    },
    "show": {
      "description": "Show the answer to a sum (2^10 / (3+5), 80 + 15%, sqrt(2) * pi).",
      "inputs": {
        "sum": { "type": "expression", "description": "Arithmetic: + - * / ^, parentheses, %, sqrt sin cos tan log ln abs round floor ceil, pi, e" }
      },
      "do": [ { "set": { "error": "" } }, { "go": "answered" } ]
    }
  },
  "states": {
    "help": {
      "task": true,
      "open": true,
      "compact": { "leading": { "symbol": "equal.square" } },
      "expanded": {
        "size": "regular",
        "header": { "symbol": "equal.square", "title": "Calculator" },
        "blocks": [
          { "input": { "placeholder": "2^10 / (3+5)", "do": [ { "command": "show", "with": { "sum": "{{item.text}}" } } ] } },
          { "note": "{{error | Or type a sum in search (⌥Space): 15% of 80, 80 + 15%, sqrt(2) * pi.}}" }
        ]
      }
    },
    "answered": {
      "task": true,
      "open": true,
      "compact": { "leading": { "symbol": "equal.square" }, "trailing": { "text": "{{input.sum.text}}" } },
      "expanded": {
        "size": "regular",
        "header": { "symbol": "equal.square", "title": "Calculator" },
        "blocks": [
          { "text": "{{input.sum.expression}} =", "style": "caption", "truncate": "head" },
          { "text": "{{input.sum.text}}", "style": "title" },
          { "input": { "placeholder": "2^10 / (3+5)", "value": "{{input.sum.expression}}",
                       "do": [ { "command": "show", "with": { "sum": "{{item.text}}" } } ] } },
          { "note": "{{error}}" }
        ]
      },
      "keys": [ { "key": "cmd+c", "label": "Copy", "do": [ { "copy": "{{input.sum.text}}" }, { "go": "copied" } ] } ]
    },
    "copied": {
      "task": true,
      "dismiss_after": 2,
      "compact": { "leading": { "symbol": "doc.on.doc", "tint": "green" }, "trailing": { "text": "{{input.sum.text}}" } }
    }
  },
  "preview": {
    "states": [ "help", "answered", "copied" ],
    "data": { "input": { "sum": { "value": 128, "text": "128", "expression": "2^10 / (3+5)" } } }
  }
}