parallax/jsPDF

Cant set CheckBox state at the second time

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#3321 opened on Nov 19, 2021

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 (1 comment) (0 reactions) (0 assignees)JavaScript (28,280 stars) (4,596 forks)batch import
Bugdifficulty:mediumhelp wanted

Description

Steps to reproduce:

  1. open sandbox http://raw.githack.com/MrRio/jsPDF/master/
  2. insert code:

var doc = new jsPDF(); doc.text('CheckBox:', 10, 125); var checkBox = new jsPDF.AcroForm.CheckBox(); checkBox.fieldName = "CheckBox1"; checkBox.Rect = [50, 118, 10, 10]; checkBox.appearanceState = 'Off' //checked On/Off doc.addField(checkBox);

The checkbox does not turn on second time. Issue In Acrobat Reader reproduced too for saved document

Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
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.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
JavaScriptjsPDF
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Examine the CheckBox class in jsPDF's AcroForm module (likely in src/modules/AcroForm.js). Look at how appearanceState is applied and whether the toggle logic properly resets the state on subsequent clicks. Check if the issue is related to the appearance stream or the field flags. Review any existing tests for checkbox behavior.