ref: 42c4bda7ce787bb674af94b96cf901efbfc342ed
dir: /README.md/
# Opossum Web Browser
Basic portable Web browser; only needs a Go compiler to compile.
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 mountpoint (only needed on 9legacy):
```
mkdir /mnt/opossum
```
### Binary
A binary for amd64 and 386 can be downloaded from http://psilva.sdf.org/opossum.html
### Compile from Source
go install ./cmd/opossum
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.
## macOS
Requirements:
- Go
- Plan9Port
```
go install ./cmd/opossum
```
# 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!
Mostly based on goja (ECMAScript 5.1) and https://github.com/fgnass/domino
(fork of DOM implementation from Mozilla in JS). Some sort of DOM diffing
is needed, also AJAX functions, `getComputedStyle` etc. are either missing or stubs.
Very simple jQuery based code works though, e.g. jQuery UI Tab view
https://jqueryui.com/resources/demos/tabs/default.html or the toggle buttons on
https://golang.org/pkg There is also highly experimental ES6 support with Babel.
(Needs also https://github.com/psilva261/6to5)
Build the js engine:
```
go install ./cmd/gojafs
```
On 9legacy also the folder `/mnt/opossum` needs to exist.
```
Then it can be tested with:
```
opossum -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