MouseButton.md

MouseButton

Namespace: SpawnDev.SpawnJS.JSObjects
Source: JSObjects/MouseButton.cs
MDN Reference: MouseButton on MDN

A number representing a given button https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/button#value

Values

Name	JSON Value	Description
PrimaryButton		Primary button (usually the left button)
AuxiliaryButton		Auxiliary button (usually the mouse wheel button or middle button)
SecondaryButton		Secondary button (usually the right button)
FourthButton		4th button (typically the "Browser Back" button)
FifthButton		5th button (typically the "Browser Forward" button)

Properties

Property	Type	Access	Description
MouseButton	enum	get	A number representing a given button https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/button#value

Examples

SpawnDev.SpawnJS Mapping Note: The JavaScript examples below show the standard Web API usage. In SpawnDev.SpawnJS, the same API is available with C# conventions:

• Properties and methods use PascalCase (e.g., readyState becomes ReadyState)
• Events use ActionEvent with +=/-= (e.g., addEventListener("click", fn) becomes OnClick += handler)
• Async methods return Task<T> instead of Promise<T>
• Objects should be disposed with using statements
• Access via JS.Get<MouseButton>(...) or constructor new MouseButton(...)

JavaScript

const button = document.querySelector("#button");
const log = document.querySelector("#log");
button.addEventListener("mouseup", (e) => {
  switch (e.button) {
    case 0:
      log.textContent = "Left button clicked.";
      break;
    case 1:
      log.textContent = "Middle button clicked.";
      break;
    case 2:
      log.textContent = "Right button clicked.";
      break;
    default:
      log.textContent = `Unknown button code: ${e.button}`;
  }
});
button.addEventListener("contextmenu", (e) => {
  e.preventDefault();
});

See full example on MDN