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mycel

★ 412 Open GitHub ↗

Rudimentary web browser written in Golang

// repository documentation

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# Mycel Web Browser

Basic portable Web browser; only needs a Go compiler to compile. Optimized for use on 9front and 9legacy, supports plan9port and 9pi as well.

The UI is built with https://github.com/mjl-/duit

Still experimental and a lot of features are missing.

Supported features:

- rudimentary HTML5 and CSS support, large parts like float/flex layout are just stub implementations
- Server-side rendered websites
- Images (pre-loaded all at once though)
- TLS
- experimental JS/DOM can be activated (very basic jQuery examples work)
- file downloads

# Install

## Plan 9

# Setup TLS
    hget https://curl.haxx.se/ca/cacert.pem > /sys/lib/tls/ca.pem
    # Create mountpoints (needed on 9legacy)
    mkdir /mnt/mycel
    mkdir /mnt/sparkle

### Binary

Binaries for amd64 and 386 can be downloaded from https://psilva.sdf.org/mycel.html

### Compile from Source

Set `$GOPROXY` to `https://proxy.golang.org` and then:

go install ./cmd/mycel

Command line options:

-h                   help
    -v                   verbose
    -vv                  print debug messages
    -jsinsecure          activate js
    -cpuprofile filename create cpuprofile

(-v and -vv produce a lot of output,
consider turning on scroll since processing
waits for that...)

`$font` is used to select the font. Very large fonts will set dpi to 200.

## macOS

Requirements:

- Go
- Plan9Port

```
go install ./cmd/mycel
```

# JS support

It's more like a demo and it's not really clear right now how much sandboxing
is really needed. A rudimentary AJAX implementation is there though.

Use on your own Risk!

JS implementation forked from goja (and thus otto). Since the implementation
is very limited anyway, DOM changes are only computed initially and during
click events. A handful of jQuery UI widgets work though, e.g. jQuery UI Tab
view https://jqueryui.com/resources/demos/tabs/default.html. There is also
highly experimental ES6 support with Babel. (https://github.com/psilva261/6to5)

Install the js engine:

```
cd ..
git/clone https://github.com/psilva261/sparklefs
cd sparklefs
go install ./cmd/sparklefs
```

On 9legacy also the folders `/mnt/mycel` and `/mnt/sparkle` need to exist.

Then it can be tested with:

```
mycel -jsinsecure https://jqueryui.com/resources/demos/tabs/default.html
```

# TODO

- load images on the fly
- implement more parts of HTML5 and CSS
- create a widget for div/span
- clean up code, support webfs, snarf

mycel

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