Implement new package fwfh_math

[daohoangson]

Related to #177

TODO

• Migrate to official flutter_math (using a fork)
• Add support for $...$ inline equations
• Add support for $$...$$ block equations
• Add support for MathML
• Make sure vertical alignment is correct (see Can I add a property to set the center display #445)

[daohoangson]

On Simulator:

[github-actions]

Demo app

Deployed 0310bed to https://example-9udajn1wq-flutter-widget-from-html.vercel.app.

Quick links:

• supported/tags.html
• Hello World
• Hello World (core)
• Wordpress
• --web-renderer canvaskit
• --web-renderer html

[codecov]

Codecov Report

Merging #471 (3c5e34f) into master (40b7e56) will decrease coverage by 1.51%.
The diff coverage is n/a.

❗ Current head 3c5e34f differs from pull request most recent head 87c4806. Consider uploading reports for the commit 87c4806 to get more accurate results

@@            Coverage Diff             @@
##           master     #471      +/-   ##
==========================================
- Coverage   98.30%   96.78%   -1.52%     
==========================================
  Files          54       45       -9     
  Lines        3358     2798     -560     
==========================================
- Hits         3301     2708     -593     
- Misses         57       90      +33     

Impacted Files	Coverage Δ
...fwfh_chewie/lib/src/video_player/video_player.dart	82.97% <0.00%> (-17.03%)	⬇️
packages/core/lib/src/widgets/html_table.dart	90.43% <0.00%> (-8.80%)	⬇️
packages/core/lib/src/widgets/html_ruby.dart	91.37% <0.00%> (-5.40%)	⬇️
packages/core/lib/src/internal/ops/tag_li.dart	94.89% <0.00%> (-5.11%)	⬇️
packages/core/lib/src/internal/ops/column.dart	96.42% <0.00%> (-3.58%)	⬇️
...ackages/fwfh_webview/lib/src/web_view_factory.dart	88.23% <0.00%> (-1.24%)	⬇️
packages/core/lib/src/internal/ops/tag_ruby.dart	95.55% <0.00%> (-0.19%)	⬇️
packages/core/lib/src/widgets/css_sizing.dart	94.40% <0.00%> (-0.18%)	⬇️
packages/core/lib/src/core_widget_factory.dart	99.53% <0.00%> (-0.07%)	⬇️
packages/core/lib/src/data/css.dart	100.00% <0.00%> (ø)
... and 43 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 40b7e56...87c4806. Read the comment docs.

[daohoangson]

On CanvasKit (html renderer doesn't seem to work):

[Skyost]

As I said in #177 (comment), I've worked on my own implementation of flutter_math_fork in flutter_widget_from_html. I had (and I'm still having) a lot of troubles with overflows and line breaks, does it fully works for you ?

[daohoangson]

The current state of the flutter_math package and its fork is not ideal, so this is mostly a proof of concept which shows the power of the modularization project.

There are issues with the vertical alignment and as you said, line breaks. Let me know if you have trouble with specific HTML / equation.

[Skyost]

There are issues with the vertical alignment and as you said, line breaks.

I recently had some success with vertical alignement and line breaks (see implementation : znjameswu/flutter_math#29 (comment)). It's not perfect, but it's working as expected.

Let me know if you have trouble with specific HTML / equation.

Not in particular, I was just curious about this pull request 😊