Checkboxes support

[giannissc]

I was under the impression that this was already submitted in the repository and would be included in the 1.1.0 update yet when i try to show a check box i only get this (image attached)

Steps to reproduce

1. Create a check box list
2. Press preview

What I expected

When writing check box list when pressing preview to render them properly

What happened instead

The check boxes were rendered as the equivalent HTML text for check boxes (see picture)

OS version

Ubuntu 17.10

Screenshot / Video

[laskin82]

same bug on windows 7

[jooji-san]

how can you create checkboxes? I'm typing [_] but it doesn't work

[laskin82]

new note

- [] test1
- [] test1
- [] test1
- [] test1

[jooji-san]

thanks, but it doesn't work. shows me this in preview: <input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"> test1 <input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"> test1 <input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"> test1 <input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"> test1

[giannissc]

It actually does work but it has a bug. Let me elaborate:

1. You create a checkbox in markdown like this:
   - [] Blah blah
- [x] Blah blah
2. The markdown texted is parsed into the equivalent html
3. The html text is parsed and rendered into the checkbox

Somehow step 3 does not happen and instead you only see the html text and not the checkbox that you are supposed to

[colinhowells]

One thing that'd be cool is if the 'preview' tab was interactive, so you could check the checkbox and when you went back to the 'edit' tab the checkbox'd be checked

[dmsnell]

Moving this into #314 where the feature request has been being tracked.

For the benefit of those in this thread I'll try and summarize why this isn't in yet:

• Something is wrong on the render of the checkbox HTML as a result of some security sanitization going on. This is a bug and we just need to find and fix it.
• Getting the checkbox to work from the preview is much harder than getting it to preview a checkbox. We had a working prototype in Add todo lists in the markdown preview #576 but that was only for the Electron app where the data flow is a bit simpler. We need to be able to get this out to the iOS, Android, macOS, and web versions too which sadly takes much more time.