emscripten-core/emscripten

GLFW3 cannot get mouse event out of canvas

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#22,449 opened on Aug 25, 2024

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help wanted

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Description

When the mouse cursor goes outside the canvas element, press, release and position data is not coming.

Contributor guide

Research direction
Examine how GLFW3 captures mouse events in Emscripten. The issue is that events outside the canvas are not received. Check the event listener attachment; likely it is only bound to the canvas element. To fix, attach the event listeners to the document or window to capture events outside the canvas, while still filtering for GLFW window coordinates relative to the canvas.
Tech stack
cppjavascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++GLFWEmscripten
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75