VN Short Key

Description

Project to register keyboard key combinations with relevant actions

Features

• Listen for keyboard key combinations with following format:
  • a1 + a2 + an + b (hit both keys the same time, with ai are action keys, such as Ctrl, Alt, Meta, Shift )
  • a b (hit a then b after a timeframe)
  • a (single key)
• Bind key combination with action
  • Bind with single action
  • Allow to chain multiple actions
• Automatically call the relevant actions (by scope and by mode) when a key combination is hitted
  • Each scope has 3 modes
  • Each mode has multiple registering key-actions

How to use:

• Init for default key binding on top of project:
  • Default scope is: global
  • Provided 3 modes:
    • n: normal
    • i: insert
    • v: visual
  • Call function:

    VnShortKey.init()

• Register keys:
  • With default scope:

    VnShortKey.mode(<mode: IMode>)
      .when(<keys: string>)
      .do(<action: IAction>)
      .bind();

  • With custom scope:

    VnShortKey.scope(<scope: string>)
      .mode(<mode: IMode>)
      .when(<keys: string>)
      .do(<action: IAction>)
      .bind();

• Register chain of actions:
  • Output of the upstream action will be passed down to the closest downstream

    VnShortKey.scope(<scope: string>)
      .mode(<mode: IMode>)
      .when(<keys: string>)
      .do(<action: IAction>)
      .then(<action: IAction>)
      .then(<action: IAction>)
      .then(<action: IAction>)
      ...
      .bind();

• With:

    IAction = (event: KeyboardEvent, upstreamReturn: unknown) => unknown;
    IMode = "v" | "i" | "n"

• Example:

    import { VnShortKey } from "vn-short-keys";
    VnShortKey.init();
    const function1 = (event, upstreamResult) => {
      console.log("function 1");
      return "func1 output";
    };
    const function2 = (event, upstreamResult) => {
      console.log("function 2");
      console.log(upstreamResult);
      return "func2 output";
    };
    VnShortKey.mode("n")
      .when("c n")
      .do(function1)
      .then(function2)
      .bind();
    VnShortKey.mode("n")
      .when("Ctrl+n")
      .do(function1)
      .then(function2)
      .bind();

• To view registered actions:

    // Dump all scopes, all modes
    VnShortKey.dump();
  
    // Dump specific scope, all modes
    VnShortKey.dump(<scopeName: string>);
  
    // Dump specific scope at specific mode
    VnShortKey.dump(<scopeName: string>, <mode: IMode>);

References

• https://n1ghtmare.github.io/2022-01-14/implement-a-keyboard-shortcuts-handler-in-typescript/
• https://github.com/jaywcjlove/hotkeys

Run test

• Call command:
  • npm run test

Publish to npmjs.com

• Call command:
  • npm publish